Car-truck.



H` M. PFLAGER.

CAR TRUCK. APPUcATmN man JULY 6,1911.

Patented Aug. 20, ll.

Zhi/enfui fr M /Df/d luv -e mw uw MISSGURI, ASSIG-NOR T CGMMONWEALTHSTEEL A CORPORATION 0F .NEW JERSEY.

CAR-TRUCK.

Specification of Letters Patent.

Patented Aug. 2d, 1918.

Application led .1 uly 6, 1917. Serial No. 179,040.

To all whom t may concern:

Be it known that I, HARRY M. PFLAGER, a citizen of the United States,residing at t. Louis, Missouri, have invented a certain new and usefulImprovement in Car-Trucks, of whichthe following is a full, clear, andexact description, such as will enable others skilled in the art towhich it appertains to make and use the same, reference being had to t eaccompanying drawings, forming part of this specification.

yMy invention relates generally to railway i latter it will beunderstood contain the bearand the central ings forl the wheel carryingaxles, and this application should be read and considered in connectionwith Patents Numbers 1,080,- `:ssa-1,080,556, 1,080,557, 1,080,558 and1,080,- 559, issued to the assignee of Clarence H.

oward and myself December 9, 1913.

he principal objects of my invention are, to provide increasedflexibility of the truck and equalize the distribution of weight uponall-of the truck wheels; .to provide a .comparatively simple truck framesupport which, by virtue of its arrangement and construction, will beedective in distributing and absorbing'shocks and vibration due to trackirregularities and preventing said shocks and vibration from ybeingtransmitted to the car body, thereby making the riding movement ott saidbody gentle; and to dgposethe liexible supporting means so that it willin nowise interfere with the free inspection, repair and adjustment ofthe brakes and brake rigging associated with the truck and the wheelsthereof.

.With the foregoing and other objects inl view, my invention consists ina plurality of springs, preferably of the semi-elliptic type,

a plurality of substantially rigidequalizer members disposed in series'with said springs, the' latter bearing upon the car truc frame, andhelical compression springs disposed between the journal boxes portionsof the equalizing members, all of saidparts being preferably disposedwithin the substantially hollow wheel piece of the truck frame.

y invention further consists incertain novel features of constructionand arrangemore easy and ment of parts, hereinafter more fully describedand claimed, and illustrated in the accompanying drawings, in whichfFigure l is a plan view .of the side portion of a truck frame7 the samebeing equipped with the iiexible support contemplated by my invention;

ig. 2 is a side elevational view of the truck frame, parts thereof beingbroken away and in section and4 showing my improliled supporting meansassociated therewit Fig. 3 is a cross section taken approximately on theline 3-3 of Fig. 2;

Fig. 4 is a detail section taken approximately on the line 4 4 of Fig.l.

Referring by numerals to the accompanying drawings which illustrate apractical embodiment of my invention, 10 designates the wheel piece ofan accepted type of six wheel truck frame, the same being preferably ofintegral construction and including end pieces 11 and transom members12.

Rigidly fixed to and depending from the wheel piece of the truck frameare pedestal jaws 13 betweenl which are positioned the usual journalboxes 14 which contain the bearings for the ends of the wheel carryingaxles 15.

The wheel pieces 10 of the truck frame j are preferably hollow and ofbox-like construction in cross section with the bottom wall or plate cutaway at points between the pedestal jaws for the accommodation of theupper portions parts associated therewith. The outerwall of the wheelpiece is cut away at suitable of the journal boxes and points,preferably between the pairs of ped- A estal jaws to .permit the readyinsertion or removal of. the equalizer, members and springs constituting.my 4improved construction.

Located on to'p of the journal boxes are comparatively thin metalplates. 16, the same serving as seats for two or more s ets ofvertically disposed helical compression springs 17. These sets ofsprings are preferablyof ,the nested type, that is, there are two ormore springs of different sizes arranged one within the other for eachset.

ubstantially rigid or non-elastic equalizing members 18 are arrangedwithin the hollow wheel pieces above the journal boxes and formed intheundersides of said meiny Cra .7 'vi n salu squali/sins' ineinbei i,eiioiln 'one os of yielding oi1 iesilient nlouin a'oij/ Hoon aclisoosecl 'oies ci bolts tbe jouinal f ones aie e l. ino

U, one uniln faces of Pta QJ ou" iig ineinbes 1S ci' that peil" whichtbe outer pain ol2 iouinal bone e i ngeis 25 Wliicn project tliiouglisuitable slots o1 onenings orinel in tlie bottoni plate of the Wbeel.piece, and tbe loivei1 encs of tliese hangers* caf-ry plates 26. These Llates seive as suo= p oits of helical springs 27 oic tbe compilessiontype tbe uppei ends thereof bea-fing against bracli ts oi lugs 28Wliicb. ae eiangefi on the uncleisicle of tbe enel noitions of tbeWlieel pieces. L

ln my iinp'fovecl constiuction it will be notecl tliat the spings 23 aieniountecl foi' reciting niovenient u'ioon tbe tiucli fiance ano. thatthe substantially rigicl equalising niernbes aie supporte@L by ancl'ulciunietl upon tlie lielical spiingg l?, wbicn lettei"x aie suppoitec`by tbe ouinal boxes "lei, and fuitlier that tle outei7 ends of tlieoutei pain of equalizing members aie connected to tbe tiucli trametbnougli tlie medium of tbe bangeis and belical springs 2'?. By viitueof this aiangenient? a tiuclt freine sunporting structui'e is providedwhich is ijielcling anc?. iqesilient to a coinnaiatively bigb clegieeeand as a result, seiiice sboclis anfi Vibration which may arise ioi'ntbe 'oassage of tbe tiucl Wheels ovei Tough tisacli, switches, ciossingsand the like aie "onactically absorbed andeliniinatecl anti. Tiel: inglmovement of the supported cai body is renclei'ecl more easy and gentle.

ny nnpiovecl spring anl equalize? an iangeinent is eective in increasingtbe biiitjfaoii tbe tucl: and equalising tbe clifibution o'li tbecaiiiecl Weight noon all of Luci; Wheels. Furtbeiinoie. by arie lnesloings ancl equalising I tbe bollos? Wheel oi ce Ucalljy' nts. lt willbe readily' uncleistoocl toet ininoi changes in tbe sizea forni ano`constfuction el ia-lious oalts ol n .entice caf i i '2 .c Y, .1.

can oe meile and suostitu o. iol tnose steun anu lescfibed iout clejoattlie sioni-t o my in ntione 'tl-ie 1 scope oi c;

l. lie combination with a cai tiucli ianie ancl its jounal bones, ofabelical spring suppoitecl by eacb jouinal box, an equalizing ineinbeisuppoitecl by each belical spring, spiings clisgposeclL between saiclequalizing' ineinbeis anal beaiing upon tbe tiucli traine and t e outecends of tbe outei? pan oie equalising,` inembes having yielclingresilient connections with saicl truck i'iaine.

2. el lieziible suppoit for railway cai tiuclis comprising equalizingineinbeis lianing yielding ancl iesilient suppo'fts upon tbe journalbones associated with tbe truck iraine., and springs disposed betweenand connected to saicl equalizingg1 membe'fs, Wnicli spiings beai1 upontbe tiucli ianie at points between tbe journal bones.

3. A igleziible support ioia iailway cai tiuciis comprising equalizingineinbeis lia-tf- 1yielding; and iesilient supports upon tbe jouinalboxes associated with tbe truck iaine, and springs disposed between enelconnected to saicl equalizing ineinbes, which spiings bear upon thetinck :lianes at points between tbe journal bones, ell of Wbicb partsare tlisposecl Within tlie substantially7 hollow Wheel pieces of tbetcucli iiaine.

il.. A i'ieiiible sup'ioot to? iailway cai1 trucks compiising equalizingmembers bavng yielding and. iesilient supiooits upon tbe journal boxesassociated. with *be tiucl; fname, springs clisposecl between anclconnectecl to said equal'zing noeinbeis5 which spirings bean uloon 4'betrucli ii'aine at points between tbe jouinal bones, anal flexible ancliesilient connections ioin tbe outei1 one of tbe outef pail ofequslieing ineinbeis ancl tbe tfuclc 5.. The combination with a tiucliand its jouinal boxes, of spiings ino'ven ent ujocn tbe lil@ terassesprings and yieldingly supported u on the journal boxes, and yieldingconnections between the outer ends of th members and the equalizingmember supported by each belical spring and the ends of said equalizingmembers having resilient connections with the truck frame. Y

In a flexible support for railway car trucks, a yielding pressure memberSupported by one of the truck journal boxes, an equalizing membersupported by said resilient means, and yielding pressure connectionsbetween said equalizing member and the truck frame.

8. In a flexible support for railway car trucks, an equalizing memberdisposed above each journal box associated with the truck, there being apocket formed in the underside of said equalizing member, a springbearing upon the journal box and occupying the pocket in the equalizingme ber, and lexible connections between the equalizing member and thetruck and resilient connections between the he outer pair of equalizingmembers and the truck frame.

. A liexbile support for railway car equalizing members having yieldingfulcrums supported by the truck Journal boxes and resilient connectionsbetween the outer ends of the outer pair of equalizmg members and thetruck frame.

In testimony whereof I hereunto aiiix my signature, this 26th day ofJune, 1917.

` HARRY M. PFLAGER.

